Experimental
Details
Materials Unprocessed, dried, raw nuts with their shells intact (Almond,
Filbert/Hazelnut, Pecan, Walnut) were procured directly from YuPik,
Montreal, QC, Canada. The nuts were originally grown in the USA. Ethanol
(C₂H₆O), Acetone (C₃H₆O), Sodium hydroxide (NaOH), Potassium Hydroxide
(KOH), Hydrochloric Acid (HCl), Sulfuric Acid
(H2SO4), and Nitric Acid
(HNO3) were obtained from Fisher Scientific.